Save power in your home cinema
Home cinemas can produce annual energy bills that run into the hundreds but it's not always the obvious offenders that do the most damage.
Turning off your TV at the socket might only save you a couple of bucks each year, while the hidden consumers continue to draw tens of watts without the user realising.
Chargers and power supplies are especially worth keeping an eye on: Many people don't realise that the transformers used in these will keep drawing approximately the same amount of power, whether or not the actual device is switched on.
Satellite receiver systems and active subwoofers are another one to watch, since both are often hidden away out of sight, out of mind. According to our example calculations, switching the entire home cinema off at the socket can reduce the amount of power wasted by around 80 percent.
But where else are there savings to be made? One option that people mightn't think of immediately is to calibrate their TV. In our tests, we reduced the TV's annual power consumption by 20 percent.
You can also choose a TV with power saving in mind new technologies such as LED backlights and local dimming mean TVs now consume far less power than their predecessors.
Never trust the power-consumption values in the manufacturer's specifications. Although the standby power consumption is now limited by (european) law to one watt, and this value can therefore be trusted, manufacturers still try all kinds of tricks to make the operating power consumption seem lower. As with all such measurements, it's best to rely on independent reviews.
Read more about reducing your home cinema's power consumption in Televisions.com's article Power-Saving TV Technologies
.Please let us know when you have additional tipps to save power in hometheaters.